rpg

Spells: Soothe and.....undecided because the builder only gives me True Strike as an option..? I think I should have other choices but I don't know

Every Psychic subclass has one forced spell choice at each spell rank. So True Strike is forced because you chose Infinite Eye. It's okay because you'll get more spell options as you go. Don't feel obligated to use True Strike. It's rarely going to be as good as other options since you aren't focusing on damage.

Soothe seems good enough for what I want but out of curiosity, are there other healing spells to pick up later?

Yeah, the better version of Soothe is rank 2 Soothe, and then rank 3 Soothe, etc. I'd recommend you make Soothe your rank 1 Signature Spell. That way, you'll be able to cast it at higher levels without needing to invest more spells known.

The occult spell list doesn't have as many HP heals as the divine spell list, but you only really need one as long as it can be upcasted. As you level up you'll get access to other kinds of reactive and defensive spells which can cleanse debuffs off of your allies (eg. Lesser Restoration or whatever it's called now with the remaster).

Also worth noting that casting spells is a very suboptimal way of healing out of combat. Since you are going the route of the INT psychic, you should put a skill point in Medicine and focus on using Treat Wounds outside of combat for healing. Probably also grab Battle Medicine in order to have another healing option in combat.

And do deities even matter outside of RP for non-Clerics? I couldn't quite figure that out..

Nope. Not unless your GM makes them matter.